![Amazon.com: APC Back-UPS 650 VA Desktop UPS - 650 VA/390 W - Desktop - 3 Minute - 4 x NEMA 5-15R -, 4 x NEMA 5-15R : Electronics Amazon.com: APC Back-UPS 650 VA Desktop UPS - 650 VA/390 W - Desktop - 3 Minute - 4 x NEMA 5-15R -, 4 x NEMA 5-15R : Electronics](https://m.media-amazon.com/images/I/71xCl48NoOL.jpg)
Amazon.com: APC Back-UPS 650 VA Desktop UPS - 650 VA/390 W - Desktop - 3 Minute - 4 x NEMA 5-15R -, 4 x NEMA 5-15R : Electronics
Why are UPS for computes rated in VA instead of watts? All of my computer power supplies have very near 1.0 power factors. - Quora
![Amazon.com: APC Back-UPS 650 VA Desktop UPS - 650 VA/390 W - Desktop - 3 Minute - 4 x NEMA 5-15R -, 4 x NEMA 5-15R : Electronics Amazon.com: APC Back-UPS 650 VA Desktop UPS - 650 VA/390 W - Desktop - 3 Minute - 4 x NEMA 5-15R -, 4 x NEMA 5-15R : Electronics](https://m.media-amazon.com/images/I/71xCl48NoOL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: APC Back-UPS 650 VA Desktop UPS - 650 VA/390 W - Desktop - 3 Minute - 4 x NEMA 5-15R -, 4 x NEMA 5-15R : Electronics
![Tripp-Lite - 15 Amp, 2,200 VA, Line Interactive Backup Uninterruptible Power Supply - 01291343 - MSC Industrial Supply Tripp-Lite - 15 Amp, 2,200 VA, Line Interactive Backup Uninterruptible Power Supply - 01291343 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/0129134-24.jpg)
Tripp-Lite - 15 Amp, 2,200 VA, Line Interactive Backup Uninterruptible Power Supply - 01291343 - MSC Industrial Supply
![CyberPower Smart App Sinewave PR3000RTXL2UAN - UPS (rack-mountable / external) - AC 100-120 V - 3000 Watt - 3000 VA 6 Ah - Ethernet 10/100, RS-232, USB - output connectors: 9 - active PFC - 2U - black | Dell USA CyberPower Smart App Sinewave PR3000RTXL2UAN - UPS (rack-mountable / external) - AC 100-120 V - 3000 Watt - 3000 VA 6 Ah - Ethernet 10/100, RS-232, USB - output connectors: 9 - active PFC - 2U - black | Dell USA](https://cdn.cs.1worldsync.com/syndication/mediaserverredirect/0ced2e77f026334b35bcf2f902ce2d75/original.jpg)